Drying apparatus.



G. H. & J H. STROBAND.

DRYING APPARATUS.

APPLICATION FILED APR. 5. 1916.

' 1,241,299. PatentedSept. 25, 1917.

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APPLICATION FILED APR. 5. I916.

1,241,29, PatentedSept. 25, 1917.

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' GEBARIDUS I-IENDRIKUS STROBAND AND JOHANES HENBICUS STROBAND, 0:15

AMSTERDAM, NETHERLANDS.

DRYING nrrannrus.

Specification of Letters Eatent.

Patented Sept. 25, 1917.

Application filed April 5, 1916. Serial N0. 89,237. v

To all whom it may concern:

Be it known that we, 'GERARDUS HEN- DRIKUS STROBAND and JoHANEs HnNnIoUs STROBAND, manufacturers, citizens of Amsterdam, subjects of the Queen of the Netherlands, and residing at Prinseneiland'99, in the city of Amsterdam andthe Kingdom of the Netherlands, have invented certain new and useful Improvements in a Drying Apparatus, of which the following is a full, clear, and exact description.

This invention relates to known processes for drying any kind of material, contained in a rotating-or oscillating cylinder and exposed to the action of air previously dried for instance by having the same caused to pass over a moisture absorbing substance, such as calcium chlorid, the air serving for drying, may after being subjected to the action of moisture absorbing substances, further be subjected to action of heat, according tothe condition and nature of the material to be dried.

According to the present invention the previously dried air enters the rotating cylinder in a continuous stream by passages at the lower part of its periphery and after traversing the material to be dried escapes at the upper part of the periphery of the cylinder.

The air at its entrance into the cylinder passes into perforated pockets placed with. their bases toward the inner periphery of the cylinder, the material to be dried fills the spaces between the pockets and consequently as the air is drawn toward the opened or inner ends of the pockets and directed toward the center of the cylinder, it passes in an upward path through thicker masses of the substance to be dried.

Apparatus suitable for the process is illustrated by way of example in the accompanying drawing, in which Figure 1 is" an elevation of the installation, andqFig. 2 is a plan partly in section. I

Referring now more particularly to the accompanying drawings wherein like and corresponding parts are designated by similar reference characters throughout the several views,

A device for the primary drying of the air by means of a moisture absorbing substance, such as calcium chlorid, is indicated as ata,-which comprises a receptaole'having a plurality of removable compartments 6/ in which calcium chloridis retained.- The, receptacle is also provided with, the inlet openings at the sides thereof indicated by a,

coils b for heating the air and a description of its detailed construction is thought unnecessary as such arewell known and common within-the art. The-air in leaving'the heating chamber passes through the casing a into the revolving cylinder cl. This cylinder d is 'rotatably mounted upon the shaft 9 and the latter is secured within a casing which incloses the cylinder at and the cylinder (Z is operatively connected to a driving means 9 where it may be rotated continuously or oscillated intermittently as desired- The periphery of this cylinder 05 is provided with a plurality of openings d and extending over these openings and projecting within theinterior of the cylinder d are the members e forming a plurality of spaced pockets which are made preferably of wire gauze or webbing, but, of course, they may be made of any other suitable material which would assist in the removal of moisture from the material contained within the cylinder. Arranged within the cylinder are thetransversely extending rods f over which the inner ends of the members 0 extend. These pockets are arranged at an angle to the radii of the cylinder d so that when the cylinder (Z is rotated a suction takes place within the cylinder, thereby drawing the air from the primary moisture absorbing and heating apparatuses. Secured to the shaft 9 is a stationary perforated inclined plate h upon which are adapted to drop the particles to be driedwhich arecontained within the cylinder. As the cylinder 03 rotates the particlescontained therein to be dried drop by gravityupon the plate 11, from the upper portion of the cylinder and then fall into the spaces between the pockets so i . partially filled With material to'be dried, it is set in motion; at the same time air is admitted to the drying device a and subjected to the drying action of the moisture absorbing. substancescontained Within the device a; the air thus dried is; then heated by the heating device Z) to the degree desired and. subsequently theair is drawn. to the rotary cylinder (Z v Where the air passes through the "openings d; then through the Wire gauze members c, subsequently pass-.

7 ing thr oughthe material contained ithin the cylinder and finally escaping through the openings atthe upper periphery of the cylinder totheat nosphere. The deviceis su table fordrying. any .inaterlals, for ex ample, grain, fru ts or other agricultural aroducts orovisions and chemicals of all unc s.

Having thus fully described our invention, What we claim as new and des re to secure.

Letters "Patent is:

1. A drying apparatusof the character described the. vcomblnation of a primary moisture absorbing and air heating apparatus of a revolving cylinder having a; plu- Copies o iithiispatentmay be obtained-for rality of openings formed in the periphery thereof, a plurality of Wire gauzemembers extendinginvvardly Within said cylinder and extending over said openings, an angularly 'described the combination of a primary moisture absorbing and air heating apparatus, of a rotatable cylinder having a plurality of openings in the periphery thereof, a pluralityof perforated pockets extending inwardly ithin said cylinder and out of direct line of the radii of said cylinder, a shaft for supportingsa-id cylinderyan angularly arrangedplatesupported upon said shaft whereby upon the rotation ofsaid cylinder air ill be drawn from said primaryv heating and absorbing apparatuses and subsequently caused to. pass through said cylinder substantially as and for the purpose specified. v

In itness whereof, We subscribe our signatures in presence of tWo witnesses.

' RD H llD-RI W TE BAND- JOHANES HENRI GUS TROB D, W itnesses; T. W. HULsHorr, R. N. MARQUARD.

five cents each, by addressing the, Commissioner 1 g m washington n cfi 

